CVE-2026-107446mediumCWE-190

CVE-2026-107446: medium-severity vulnerability in containerd overlaybd

Published

10Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.8
exploitation probability
—
observed exploitation
nono source reports it
containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Affected products
containerd · overlaybd
References
https://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/image_file.cpphttps://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/overlaybd/lsmt/file.cpphttps://github.com/containerd/overlaybd/commit/a536e3341c82517268b5ce32375b36faecb1fb40https://github.com/containerd/overlaybd/commit/d80c1790920a17e84da025675530624aee753f1bhttps://github.com/containerd/overlaybd/pull/438